JP2001509534A - 改良された粘度特性を有する自動変速機液組成物 - Google Patents
改良された粘度特性を有する自動変速機液組成物Info
- Publication number
- JP2001509534A JP2001509534A JP2000502130A JP2000502130A JP2001509534A JP 2001509534 A JP2001509534 A JP 2001509534A JP 2000502130 A JP2000502130 A JP 2000502130A JP 2000502130 A JP2000502130 A JP 2000502130A JP 2001509534 A JP2001509534 A JP 2001509534A
- Authority
- JP
- Japan
- Prior art keywords
- viscosity
- weight
- lubricating oil
- composition
- shear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 239000012530 fluid Substances 0.000 title claims abstract description 12
- 239000003607 modifier Substances 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 239000010689 synthetic lubricating oil Substances 0.000 claims abstract description 15
- 239000010687 lubricating oil Substances 0.000 claims abstract description 14
- 230000008961 swelling Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 10
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- 229920000768 polyamine Polymers 0.000 claims description 8
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000002199 base oil Substances 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
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- 229920000642 polymer Polymers 0.000 abstract description 19
- 229920006158 high molecular weight polymer Polymers 0.000 abstract description 3
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- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 4
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- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 3
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 3
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
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- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
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- 239000012141 concentrate Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 3
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- 125000004433 nitrogen atom Chemical group N* 0.000 description 3
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- 239000000376 reactant Substances 0.000 description 3
- 235000011044 succinic acid Nutrition 0.000 description 3
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 2
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 2
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- HBHLHEJVEMYNOX-UHFFFAOYSA-N 2-[2-dodecoxyethyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCOCCN(CCO)CCO HBHLHEJVEMYNOX-UHFFFAOYSA-N 0.000 description 2
- CQRMCEDTUNKWRM-UHFFFAOYSA-N 2-[3-hexadecoxypropyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCCCCCOCCCN(CCO)CCO CQRMCEDTUNKWRM-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 239000002530 phenolic antioxidant Substances 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 125000002924 primary amino group Chemical class [H]N([H])* 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 150000003444 succinic acids Chemical class 0.000 description 2
- 229940014800 succinic anhydride Drugs 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- 239000003981 vehicle Substances 0.000 description 2
- XAKBEOUVVTWXNF-RNFRBKRXSA-N (1r,6s)-3,3,7,7-tetramethyl-4-oxabicyclo[4.1.0]heptan-5-one Chemical compound C1C(C)(C)OC(=O)[C@@H]2C(C)(C)[C@@H]21 XAKBEOUVVTWXNF-RNFRBKRXSA-N 0.000 description 1
- RDAGYWUMBWNXIC-UHFFFAOYSA-N 1,2-bis(2-ethylhexyl)benzene Chemical compound CCCCC(CC)CC1=CC=CC=C1CC(CC)CCCC RDAGYWUMBWNXIC-UHFFFAOYSA-N 0.000 description 1
- YEYQUBZGSWAPGE-UHFFFAOYSA-N 1,2-di(nonyl)benzene Chemical compound CCCCCCCCCC1=CC=CC=C1CCCCCCCCC YEYQUBZGSWAPGE-UHFFFAOYSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- MBEVSMZJMIQVBG-UHFFFAOYSA-N 2-(hydroxymethyl)guanidine Chemical group NC(N)=NCO MBEVSMZJMIQVBG-UHFFFAOYSA-N 0.000 description 1
- MMRYDXKJSAAFQD-UHFFFAOYSA-N 2-[2-dodecylsulfanylethyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCSCCN(CCO)CCO MMRYDXKJSAAFQD-UHFFFAOYSA-N 0.000 description 1
- XGBWAZFLANKIKG-UHFFFAOYSA-N 2-[2-hydroxyethyl(2-octadecoxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCCCCCCCOCCN(CCO)CCO XGBWAZFLANKIKG-UHFFFAOYSA-N 0.000 description 1
- DLXPBOSHQIWVOD-UHFFFAOYSA-N 2-[2-hydroxyethyl(octadec-1-enyl)amino]ethanol Chemical compound CCCCCCCCCCCCCCCCC=CN(CCO)CCO DLXPBOSHQIWVOD-UHFFFAOYSA-N 0.000 description 1
- WGNIANIQFZJWOD-UHFFFAOYSA-N 2-[2-hydroxyethyl(tetradec-2-en-2-yl)amino]ethanol Chemical compound CCCCCCCCCCCC=C(C)N(CCO)CCO WGNIANIQFZJWOD-UHFFFAOYSA-N 0.000 description 1
- IJPXXOVHDMEUSR-UHFFFAOYSA-N 2-[2-hydroxyethyl(undecyl)amino]ethanol Chemical compound CCCCCCCCCCCN(CCO)CCO IJPXXOVHDMEUSR-UHFFFAOYSA-N 0.000 description 1
- BITAPBDLHJQAID-KTKRTIGZSA-N 2-[2-hydroxyethyl-[(z)-octadec-9-enyl]amino]ethanol Chemical compound CCCCCCCC\C=C/CCCCCCCCN(CCO)CCO BITAPBDLHJQAID-KTKRTIGZSA-N 0.000 description 1
- CKRBTHYBUWKADE-UHFFFAOYSA-N 2-[3-dodecylsulfanylpropyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCSCCCN(CCO)CCO CKRBTHYBUWKADE-UHFFFAOYSA-N 0.000 description 1
- DQELTCKHVYMLMA-UHFFFAOYSA-N 2-[3-hexadecylsulfanylpropyl(2-hydroxyethyl)amino]ethanol Chemical compound CCCCCCCCCCCCCCCCSCCCN(CCO)CCO DQELTCKHVYMLMA-UHFFFAOYSA-N 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
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Classifications
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Abstract
Description
号の一部継続出願である。
成物及び改良方法に係り、詳細には、超低温の粘度特性及び超高温の潤滑油膜強
度を有する部分合成自動変速機液を得ることに関する。
存する。変速機の低温操作におけるATF粘度の影響はよく特徴づけられ、さま
ざまな研究の対象であった(例えば、SAE論文870356(1987)及び
SAE論文124T(1960)参照)。この研究結果は、−40℃におけるA
TFに対するBrookfield粘度要求の継続的な低減であった。より低いBrookfield
粘度を得る一般的な方法は、より低粘度の基油を用いることである。しかし、こ
のような低粘度基油は、より高粘度の基油よりも弱い流体力学的被膜しか形成し
ない。強い流体力学的被膜を維持する能力は、高い剪断速度、例えば1×106 秒-1下、150℃において潤滑剤の粘度を測定することによって決定される。従
って、ATF生成器の1つの目的は、低温粘度、すなわち−40℃におけるBroo
kfield粘度を最少化し、一方高温高剪断粘度、すなわち150℃及び106秒-1 の剪断速度における粘度を最大にすることである。
又は車の走行マイル数による液粘度の変化である。使用に際して粘度の変化が少
ない液体は、剪断安定性と言われる。従来のATFは、高分子粘度調整剤、又は
増粘剤を使用して100℃において少なくとも6.8mm2/s(cSt)の動粘度を達
成する。それらは、それ自体機械的分解及び酸化分解に影響されやすい。これら
の望ましくない結果を回避するため、我々は、顕著な低温特性及び優れた高温高
剪断粘度を有する自動変速機液は、高分子増粘剤としてではなく流れ改良剤とし
て機能するポリマーによって製造できることを見出した。従って、これらの液体
は優れた剪断安定性を有する。
106秒-1及び温度150℃における高温高剪断粘度が少なくとも1.5センチ ポアズ、かつ、剪断速度2×102秒-1及び温度150℃で測定される高温低剪 断粘度と前記高温高剪断粘度との差が0.25センチポアズ以下であることを特
徴とする自動変速機液に関する。
が約18,000センチポアズ(cP)以下、及び150℃、剪断速度106秒-1 で少なくとも1.5cPの高温高剪断(HTHS)粘度で判断される優れた油膜強
度を有するATFを含む。本発明の他の利点は、製造される液体は、たとえ高分
子増粘剤があるとしても、高分子増粘剤からはほとんどその動粘度を得ていない
ことである。この利点によって、高温(150℃)低剪断(2×102秒-1)粘 度と、高温(150℃)高剪断(1×106秒-1)粘度との差をほとんどゼロ、 すなわち0.25cP以下に近づけることができる。
粘度が約18,000cP以下、好ましくは約15,000cP以下、最も好ましく
は10,000cP以下であるATFは、基油の慎重な選択及び高分子増粘剤の最
少化によって製造できることがわかった。これらの改良されたATFは天然潤滑
油及びポリ−α−オレフィン又はアルキル芳香族化合物のような合成潤滑油のブ
レンドである。液の粘度は、粘度調整剤のような高分子添加剤にはほとんど又は
全く由来していない。高分子量ポリマーは、最初は液の粘度を高める傾向がある
が、この粘度増加は使用中に無くなるので望ましくない。また、高分子量ポリマ
ーは低剪断状態においてのみ高温粘度に寄与する。ギア及びベアリングにおいて
存在するような高剪断速度になりやすいときは、この粘度の寄与は失われる(一
時的剪断)。しかし、少量の油溶性ポリマーを使用して分散性又は低温流れの向
上のような他の利益を得る必要があるだろう。使用する場合、これらポリマーの
液中で取扱う割合は、通常2質量%以下であり、また、これらポリマーは低分子
量、典型的には500,000原子質量単位以下であることが好ましいだろう。
これらポリマーの最少量を含有する液は、150℃において剪断速度がそれぞれ
2×102秒-1及び1×106秒-1で測定した場合、高温低剪断粘度が高温高剪断
粘度よりわずか0.25cPしか大きくないだろう。
れた低温流動性、十分な摩耗防止のための強い流体力学的油膜、及び走行マイル
数が増加した状態における変速機操作性向上のための優れた剪断安定性を与える
。本発明の利点を達成するのに適した成分の詳細は以下の通りである。
油、及び石炭や頁岩(shale)由来の油を含む。通常、これら油の動粘度は100 ℃において、1〜30、好ましくは2〜20、さらに好ましくは約2〜8、最も
好ましくは3〜5mm2/s(cSt)である。
造の油を含む。油は、酸、アルカリ、及びクレー又は塩化アルミニウムのような
他の薬剤を使用する従来の方法で精製するか、又は例えばフェノール、二酸化イ
オウ、フルフラール、ジクロロエチルエーテル等のような溶剤による溶剤抽出で
抽出してもよい。また、油は水素化精製又は水添脱硫、冷却若しくは触媒法によ
る脱ロウ、又は水添分解してもよい。鉱油は天然原油源から得ても、又は異性化
ワックス材料若しくは他の精製法の残留物からなるものでもよい。
油として加えられても、又はATFに添加される成分或いは添加剤と共に希釈液
として含まれてもよい。好ましい製品は、10〜75質量%の鉱油を含有し、最
良の製品は、約10〜約50質量%の鉱油を含有する。
く、限定するわけではないが、ポリ−α−オレフィン、アルキル化芳香族化合物
、及びそれらの混合物を含む。これら油の例としては、ポリマー化及びインター
ポリマー化オレフィン(例えば、ポリブテン、ポリプロピレン、ポリプロピレン
−イソブチレンコポリマー、ポリ(1−ヘキセン)、ポリ(1−オクテン)、ポ
リ(1−デセン));アルキルベンゼン(例えば、ドデシルベンゼン、テトラデ
シルベンゼン、ジノニルベンゼン、ジ−(2−エチルヘキシル)ベンゼン);ポ
リフェニル(例えば、ビフェニル、ターフェニル、アルキル化ポリフェノール)
;アルキル化ジフェニルエーテル並びにそれらの誘導体、類似体及び同族体があ
る。
−デセン、1−ドデセン又はそれらの混合物のオリゴマー形成によって製造され
るポリ−α−オレフィンである。本発明で用いる合成潤滑油は、一般に、100
℃において1〜100、好ましくは2〜100mm2/s(cSt)の動粘度を有し、10
0℃において2〜6mm2/s(cSt)の範囲の粘度を有する油が最も好ましい。
しい液は、5〜75質量%、最も好ましくは約20〜約60質量%の範囲の合成
油を含有する。
エラストマー材料を膨張させる鉱油である。本発明のエステルベースシール膨張
剤は、一塩基酸及び二塩基酸とモノアルコールのエステル、又はポリオールと一
塩基エステルとのエステルを含む。エステル型シール膨張剤の例としては、ジイ
ソオクチルアジペート、ジオクチルセバセート、ジ−イソオクチルアゼレート、
ジオクチルフタレート、ジ−ヘキシルフタレートがある。アルコール型シール膨
張剤は低揮発性の直鎖状アルキルアルコールである。好適なアルコールの例は、
デシルアルコール、トリデシルアルコール及びテトラデシルアルコールである。
置換スルホンの例は、米国特許第4,029,588号に記載されている。シー
ル膨張剤として有用な鉱油は、典型的には、高ナフテン含量又は高芳香族含量の
低粘度鉱油である。好適な鉱油の例は Exxon Necton-37(FN 1380)及びExxon M
ineral Seal Oil(FN 3200)である。本発明で製造される典型的な液体は、約1
〜約30質量%のシール膨張剤を含有する。シール膨張剤の好ましい範囲は、約
2〜約20質量%、最も好ましくは、約5〜約15質量%である。
して油のゲル化を妨げ、かつ低温における粘度増加が最少である油溶性ポリマー
である。これらポリマーは、潤滑油中でのワックスの結晶の大きさ、数、及び成
長を加減することによって、低温における取扱い、ポンプ汲上げ、及び/又は変
速機の操作性を改良するように働く。流れ改良剤として使用されるポリマーには
2つの一般的な型があり、1つはその主鎖にその活性が由来し、他方はその側鎖
に由来する。
、そのポリマーの主鎖にランダムに分布するメチレンセグメントの種々の長さを
有する。ワックスの結晶と会合或いは共結晶するこれらのエチレンセグメントは
、そのポリマー中の分岐及び非結晶化セグメントによるさらなる結晶の成長を阻
止する。
しくは直鎖状アルキル基中にメチレンセグメントを有している。これらポリマー
は、側鎖が潤滑油中で見られるイソパラフィン及びn−パラフィンの処理におい
てより効果的であることがわかったことを除き、活性主鎖型と同様に機能する。
この型のポリマーの代表的なものは、C8〜C18のジアルキルフマレートビニル アセテートコポリマー、ポリアクリレート、ポリメタクリレート、及びエステル
型スチレン−無水マレイン酸コポリマーである。
度調整剤(すなわち、潤滑組成物の粘度指数を増加させるために用いられるポリ
マー組成物)として機能するが、これら組成物が特定環境下で流れ改良剤として
も機能することを当業者は認識している。このような環境は、分子量及び扱う割
合の関数である。従って、本発明で使用する場合、用語「流れ改良剤」は、例え
ばゲル浸透クロマトグラフィーで測定した分子量が500,000原子質量単位
以下の質量平均分子量を有するポリアクリレート、ポリメタクリレート、及びス
チレン−無水マレイン酸を包含することを意味する。用語「原子質量単位」は、
質量12の炭素原子の1/12の質量と等しいとして定義された原子量の基準で
ある。
する。流れ改良剤の好ましい濃度は、約0.1〜約2.0質量%、最も好ましく
は約0.2〜約2.0質量%である。
きる。 (i)アルコキシル化アミン アルコキシル化アミンは、本発明の用途に特に好適な摩擦調整剤である。この
タイプの摩擦調整剤は以下に示す(I)、(II)、及びそれらの混合物からなる群 より選択される。
カルであり、好ましくはC10〜C20、最も好ましくはC14〜C18; R2は、直鎖又は分岐鎖C1〜C6アルキレンラジカルであり、好ましくはC2〜C 3 ; R3、R4、及びR5は、それぞれ同一又は異なっており、直鎖又は分岐鎖C2〜C 5 アルキレンラジカルであり、好ましくはC2〜C4; R6、R7、及びR8は、それぞれH又はCH3であり; R9は、直鎖又は分岐鎖C1〜C5アルキレンラジカルであり、好ましくはC2〜C 3 ; Xは酸素又はイオウであり、好ましくは酸素;mは0又は1であり、好ましくは
1;及び nは整数で、それぞれ1〜4であり、好ましくは1である。
し、R及びR1は合わせて18の炭素原子を有し、R2はC3アルキレンラジカル を表し、R3及びR4はC2アルキレンラジカルを表し、R6及びR7は水素であり 、mは1であり、かつ各nは1である式(I)で特徴づけられる。
コールをアクリロニトリルのような不飽和ニトリルと反応させてエーテルニトリ
ル中間体を形成させる多工程方法による。その中間体を、好ましくは白金黒又は
ラネーニッケルのような一般的な水素化触媒の存在下で水素化してエーテルアミ
ンを形成する。そして、そのエーテルアミンを、アルカリ触媒の存在下約90〜
150℃の温度範囲で通常の方法によって、エチレンオキシドのようなアルキレ
ンオキシドと反応させる。
エタノールアミンのようなアルカノールアミンと反応させ、エチレンオキシド又
はプロピレンオキシドのようなアルキレンオキシドとの反応によってさらにオキ
シアルキレート化が可能な中間体を形成する。このタイプの方法は、例えば米国
特許第4,201,684号に論じられている。
シエチルメルカプタンのようなヒドロキシアルキルメルカプタンと長鎖α−オレ
フィン間に一般的なフリーラジカル反応を作用させて、長鎖アルキルヒドロキシ
アルキルスルフィドを形成させることによって製造できる。そして、その長鎖ア
ルキルヒドロキシアルキルスルフィドを塩化チオニルと低温で混合し、約40℃
に加熱して長鎖アルキルクロロアルキルスルフィドを得る。その長鎖アルキルク
ロロアルキルスルフィドを、アルカリ触媒の存在下、ほぼ100℃の温度で、ジ
エタノールアミンのようなジアルカノールアミン、所望によりエチレンオキシド
のようなアルキレンオキシドと反応させて所望のアミン化合物を得る。このタイ
プの方法は当分野で公知であり、例えば、米国特許第3,705,139号で論
じられている。
あり、例えば、米国特許第3,186,946号、第4,170,560号、第
4,231,883号、第4,409,000号及び第3,711,406号に
記載されている。
シルアミン; N,N−ビス(2−ヒドロキシエチル)−1−メチル−ウンデシルアミン; N,N−ビス(2−ヒドロキシエトキシエトキシエチル)−1−エチル−オクタ
デシルアミン; N,N−ビス(2−ヒドロキシエチル)−ココアミン(cocoamine); N,N−ビス(2−ヒドロキシエチル)−獣脂アミン(tallowamine); N,N−ビス(2−ヒドロキシエチル)−n−ドデシルオキシエチルアミン; N,N−ビス(2−ヒドロキシエチル)−ラウリルオキシエチルアミン; N,N−ビス(2−ヒドロキシエチル)−ステアリルオキシエチルアミン; N,N−ビス(2−ヒドロキシエチル)−ドデシルチオエチルアミン; N,N−ビス(2−ヒドロキシエチル)−ドデシルチオプロピルアミン; N,N−ビス(2−ヒドロキシエチル)−ヘキサデシルオキシプロピルアミン;
N,N−ビス(2−ヒドロキシエチル)−ヘキサデシルチオプロピルアミン; N2−ヒドロキシエチル,N−[N′,N′−ビス(2−ヒドロキシエチル)エ
チルアミン]−オクタデシルアミン;及び N2−ヒドロキシエチル,N−[N′,N′−ビス(2−ヒドロキシエチル)エ
チルアミン]−ステアリルアミン。
ルオキシプロピルアミンである。この添加剤は、Tomah Companyから商品名 Toma
h E-22-S-2として入手できる。
シアルキレン鎖の長さと位置は、種々に変えて特定要求に適合させることができ
る。例えば、ヒドロカルビルラジカル中の炭素原子数を増やすと、アミンの融解
温度及び油溶性は高まるが、ヒドロカルビルラジカルが長すぎると、アミンは溶
液から結晶化する傾向がある。ヒドロカルビルラジカル中の飽和度を低くすると
、ヒドロカルビル鎖の炭素量が同一の場合は、アミンの融点が低くなる傾向があ
る。アルキレンオキシドの量を増やすと、ポリオキシアルキレン鎖が長くなり、
アミンの水溶性が増し、その油溶性が減じる傾向がある。
ウ素、メタホウ酸塩、ホウ酸、又はモノ−、ジ−、及びトリアルキルホウ酸塩の
ようなホウ素化合物の付加体又は反応生成物の形態でも使用できる。このような
付加体又は誘導体は、例えば、以下の構造式によって示すことができる。
、R10は水素又はアルキルラジカルのどちらかである。
水物との反応生成物である。簡単には、ポリアミン反応物は、総炭素数が2〜6
0で窒素原子を3〜15個含み、窒素原子の少なくとも1個は一級アミン基の形
で存在し、残りの窒素原子のうち少なくとも2個は一級アミン基又は二級アミン
基の形で存在している。好適なアミン化合物の非限定的な例としては、ジエチレ
ントリアミン(DETA);トリエチレンテトラミン(TETA);テトラエチ
レンペンタミン(TEPA)のようなポリエチレンアミン;ジ−(1,2−プロ
ピレン)トリアミン、ジ(1,3−プロピレン)トリアミンのようなポリプロピ
レンアミン、及びそれらの混合物がある。さらに、好適なアミンとしては、ポリ
オキシプロピレントリアミン及びポリオキシエチレントリアミンのようなポリオ
キシアルキレンポリアミンがある。好ましいアミンは、DETA、TETA、T
EPA、及びそれらの混合物(PAM)を含む。最も好ましいアミンは、TET
A、TEPA及びPAMである。
ルであり、9〜29個好ましくは11〜23個の炭素原子を含む。R″が分岐鎖
基の場合、側鎖又はペンダント基に存在する炭素原子は25%以下である。R″
は、好ましくは直鎖である。
基を主とするものも含む。この主としてヒドロカルビル基という記述は、その基
がここで記載したような用途に関連する基のヒドロカルビルの性質又は特性に有
意に影響する非ヒドロカルビル置換基又は非炭素原子は含まないことを意味する
。例えば、純粋なヒドロカルビルC20アルキル基及びメトキシ置換基で置換され
たC20アルキル基は、実質的にその特性が同一であり、この開示の範囲内のヒド
ロカルビルとみなされるだろう。
ビルの特徴又は特性をほとんど変えない置換基の非限定的な例としては、以下の
ものがある。 エーテル基(特にフェノキシ、ベンジルオキシ、メトキシ、n−イソトキシ等の
ようなヒドロカルビルで、とりわけ炭素原子が10個までのアルコキシ基);
ポリアミンと1のカルボン酸又は無水物を、アミン反応物1モルに対するカルボ
ン酸又は無水物のモル当量が約2〜10の割合で反応させることによって調製で
きる。
して、所望の流動性能を達成してもよい。これらには、カルボン酸及び無水物と
アルカノールとのエステルがある。他の一般的な摩擦調整剤は、通常、親油性の
炭化水素鎖と共有結合している極性末端基(カルボキシル、ヒドロキシル、アミ
ノ等)からなる。
米国特許第4,702,850号に記載されている。この文献は、これらエステ
ル、特にコハク酸又は無水物とチオ−ビス−アルカノールとのエステル、最も好
ましくは2−オクタデセニル無水コハク酸とチオジグリコールとのエステルの摩
擦調整剤としての有用性について教示している。
例えば、M. Belzer の“Journal of Tribology”(1992), Vol. 114, pp. 675-68
2及びM. Belzer及びS. Jahanmir の“Lubrication Science”(1968), Vol.1, pp
. 3-26に記載されている。
.1〜3質量%の量で存在する。
散剤、耐摩耗剤、酸化防止剤、腐食防止剤、界面活性剤、極圧添加剤等がある。
それらは、例えば、C. V. Smalheer及びR. Kennedy Smithの“Lubricant Additi
ves”,1967,pp.1-11及び米国特許第4,105,571号に開示されている。
ク酸アミド、ヒドロカルビル置換コハク酸の混合エステル/アミド、ヒドロカル
ビル置換コハク酸のヒドロキシエステル、及びヒドロカルビル置換フェノール、
ホルムアルデヒド及びポリアミンのマンニッヒ縮合反応物がある。このような分
散剤を混ぜても使用できる。
開示されているような種々のアミン又はアミン誘導体から生成される非環式ヒド
ロカルビル置換コハク酸イミドを含む。また、リンの無機酸(又はその無水物)
及びホウ素化剤で処理されたアルケニルコハク酸イミドの使用も、それらがフル
オロエラストマーやケイ素含有エラストマーのような物質から製造されるエラス
トマーシールとより適合するので、本発明の組成物における使用に好適である。
ポリイソブテニル無水コハク酸と、トリエチレンテトラアミン又はテトラエチレ
ンペンタミンのようなアルキレンポリアミンとから生成されるポリイソブテニル
コハク酸イミドであって、そのポリイソブテニル置換基が、数平均分子量が50
0〜5000(好ましくは800〜2500)の範囲のポリイソブテンから誘導
されたポリイソブテニルコハク酸イミドは特に好適である。分散剤は、当業者に
公知の多くの試薬で後処理してもよい。(例えば、米国特許第3,254,02
5号、第3,502,677号及び第4,857,214号参照)。
酸化防止剤の例としては、フェニルαナフチルアミン、フェニβナフチルアミン
、ジフェニルアミン、ビス−アルキル化ジフェニルアミン(例えば、アルキル基
が8〜12個の炭素原子をそれぞれ含むp,p′−ビス(アルキルフェニル)ア
ミン)が挙げられる。フェノール系酸化防止剤としては、立体障害性フェノール
(例えば、2,6−ジ−tert−ブチルフェノール、4−メチル−2,6−ジ−te
rt−ブチルフェノール等)及びビス−フェノール(例えば、4,4′−メチレン
ビス(2,6−ジ−tert−ブチルフェノール等)等がある。
ることによって、得られる液が所望の濃度で各成分を含むようになる相対的割合
で、シール膨張剤、流れ改良剤、摩擦調整剤、及び他の所望の添加剤を天然及び
/又は合成潤滑油中に含む。従って、所望の最終組成物が鉱油に比べて合成油を
少量しか含まない場合は、該濃縮物は潤滑油として合成油を含んでよい。濃縮物
は、典型的には、25〜100、好ましくは65〜95、最も好ましくは75〜
90質量%のシール膨張剤、流れ改良剤、摩擦調整剤、他の所望の添加剤、及び
合成及び/又は天然油を含む。
明は後述する実施例の特定の細部に制限されるものではない。すべての部及びパ
ーセントは、特に言及しない限り質量による。
ATF基油にブレンドして製造された16の自動変速機液を示す。該添加剤パッ
ケージは、一般的な量のコハク酸イミド分散剤、酸化防止剤、耐摩耗剤、摩擦調
整剤、腐食防止剤、消泡剤、及び希釈油を含有する。さらに、16の各ブレンド
は、シール膨張剤としてジイソオクチルアジペートを含有する。
。ブレンドの正確な組成を表1に示した。そして、各ブレンドの100℃におけ
る動粘度(ASTM D445を使用して)、−40℃におけるBrookfield粘度 (ASTM D2983を使用して)、150℃及び2×102秒-1における高温
低剪断(HTLS)粘度(ASTM D4683を使用して)、及び150℃及 び1×106秒-1における高温高剪断(HTHS)粘度(これもASTM D46
83を使用して)を測定して、各ブレンドを特徴づけた。粘度測定の結果も表1
に示した。表1の最終行は、HTLS粘度とHTHS粘度測定値の差を示す。こ
れら測定値の差が少ないほど、より剪断安定性の液であることを示す。
における動粘度が少なくとも4.0mm2/s(cSt)であることに合致している。1
B、2B、及び10Bで表される液体は「ブランク」であり(すなわち、それら
はポリマーが添加されていない)、(1)ポリマー材料添加前のベースブレンド
の実際の動粘度、(2)ポリマー添加剤が存在しない場合のHTLS粘度とHT
HS粘度との測定値の差が本質的にゼロであること、及び(3)流れ改良剤が存
在しない場合には、本発明の所望の低温Brookfield粘度が達成できないことを示
すための対照として含めたものである。
はポリメタクリレート)を添加する効果がわかる。流れ改良剤を扱う割合を増や
すと、液体の100℃における動粘度は、4.22から7.69mm2/s(cSt)に
急速に上昇する。このことは、流れ改良剤は、扱う割合を増やすにつれてだんだ
ん粘度調整剤(すなわち、粘度指数改良剤)として機能することを示している。
また、HTLS粘度及びHTHS粘度の差も、0.02(本質的に0)から0.
6cPに上昇し、ポリメタクリレートを5.0%含有するブレンド6は、車での剪
断安定性があまり良くなく、本発明の基準に合致しないことを示している。これ
らの実施例は、特にポリマーの分子量が500,000原子質量単位に近い場合
は、高分子増粘剤として機能するポリマーの使用を最少化し又は無くす必要性を
実証している。
効果と共にベースストックの効果に関する。このデータは、すべての場合に、本
発明の粘度及び剪断安定性の要求は、2.0質量%以下の流れ改良剤を使用した
場合に満たすことができることを示す。
は、合成潤滑油を含まない鉱油では、低温特性が非常に優れる高ナフテン系油を
使用したときでさえ達成できる場合はないことを示す。
Cと18Cとして示される。それらは本発明の粘度基準に合致しないこと---そ れらはHTLS−HTHS(剪断安定性要求)の差が0.25cP以下ではないこ
とがわかる。
々の量のシール膨張剤、天然及び合成潤滑油、また種々のタイプ及び量のポリマ
ー流れ改良剤を用いて製造した。各液について相対粘度及び剪断測定を行い、そ
の結果を表2に示した。
−40℃におけるBrookfield粘度が18,000cP以下(実際には、10,00
0cP以下)のATFは本発明により製造できることを示している。また、これら
のデータは、Brookfield粘度が5,000cP未満のATF(例えば、ブレンド2
2、24、26、27、28、29、30、31、及び32)も可能であること
を示している。これらすべての液は、1.5cPという最小のHTHS粘度を有し
、HTLSとHTHSとの差が0.25cP以下である。
した。しかし、開示した特定の形態は限定するものではなく例示であるため、本
明細書で保護されることを意図する発明は、開示した特定の形態に制限されるも
のではない。当業者は、本発明の精神から逸脱することなく変形や変更を行うこ
とができる。
Claims (12)
- 【請求項1】自動変速機液組成物であって、以下の成分: (a)約2〜80質量%の、100℃における動粘度が1〜30mm2/sである天 然潤滑油; (b)約2〜80質量%の、100℃における動粘度が1〜100mm2/sである 合成潤滑油; (c)1〜30質量%のシール膨張剤; (d)0.05〜2.0質量%の流れ改良剤であって、該流れ改良剤が、C8〜 C18のジアルキルフマレートビニルアセテートコポリマー、スチレン−無水マレ
イン酸コポリマー、ポリメタクリレート、ポリアクリレート、及びそれらの混合
物からなる群より選択され、前記スチレン−無水マレイン酸コポリマー、ポリメ
タクリレート、及びポリアクリレートそれぞれの質量平均分子量が、500,0
00原子質量単位以下である流れ改良剤;及び (e)0.01〜5.0質量%の摩擦調整剤; を含み、 該生成液組成物が、100℃における動粘度が少なくとも4.0mm2/s、−40 ℃におけるBrookfield粘度が約18,000センチポアズ以下、剪断速度1×1
06秒-1及び温度150℃における高温高剪断粘度が少なくとも1.5センチポ アズ、かつ、剪断速度2×102秒-1及び温度150℃で測定される高温低剪断 粘度と前記高温高剪断粘度との差が0.25センチポアズ以下であることを特徴
とする自動変速機液組成物。 - 【請求項2】前記合成潤滑油が、ポリ−α−オレフィン−、モノエステル−
、ジエステル−、ポリオールエステル−ベース油、又はそれらの混合物である、
請求項1に記載の組成物。 - 【請求項3】前記合成潤滑油が、ポリ−α−オレフィンである請求項2に記
載の組成物。 - 【請求項4】前記摩擦調整剤が、(I);(II);(III)、(IV)、(V)、(VI)とポ リアミンとの反応生成物;及びそれらの混合物からなる群より選択され、前記(I
)、(II)、(III)、(IV)、(V)、(VI)が、 【化1】 であり、 式中、RはH又はCH3であり; R1はC8〜C28の飽和又は不飽和、置換又は非置換、脂肪族ヒドロカルビルラジ
カルであり; R2は、直鎖又は分岐鎖C1〜C6アルキレンラジカルであり; R3、R4、及びR5は、それぞれ同一又は異なっており、直鎖又は分岐鎖C2〜C 5 アルキレンラジカルであり; R6、R7、及びR8は、それぞれH又はCH3であり; R9は、直鎖又は分岐鎖C1〜C5アルキレンラジカルであり; Xは酸素又はイオウであり; mは0又は1であり; nは整数で、それぞれ1〜4であり;かつ、 R″は、9〜29個の炭素原子を含む直鎖又は分岐鎖、飽和又は不飽和、脂肪族
ヒドロカルビルラジカルであり、R″が分岐鎖基の場合は、側鎖又はペンダント
基中に25%以下の炭素原子があることを特徴とする請求項3に記載の組成物。 - 【請求項5】前記摩擦調整剤が、エトキシル化アミン、アルキルアミド、又
はそれらの混合物である請求項4に記載の組成物。 - 【請求項6】前記組成物が、さらにホウ素化又は非ホウ素化コハク酸イミド
分散剤、フェノール性又はアミン酸化防止剤を、分散剤、酸化防止剤、及び摩擦
調整剤の合計が該組成物の2.0〜11質量%となるような量で含む、請求項5
に記載の組成物。 - 【請求項7】−40℃におけるBrookfield粘度が約10,000cP以下であ
る請求項1に記載の組成物。 - 【請求項8】請求項1に記載の組成物の製造方法であって、以下の工程: (a)主要量の天然及び合成潤滑油を供給する工程;及び (b)該潤滑油に流れ改良剤、シール膨張剤、及び0.01〜5.0質量%の摩
擦調整剤を添加する工程; を含む方法。 - 【請求項9】自動変速機液組成物であって、以下の成分: (a)約2〜80質量%の、100℃における動粘度が2〜8mm2/sである天然 潤滑油; (b)約2〜80質量%の、100℃における動粘度が2〜100mm2/sである 合成潤滑油; (c)1〜30質量%のシール膨張剤; (d)0.05〜2.0質量%の流れ改良剤であって、該流れ改良剤が、C8〜 C18のジアルキルフマレートビニルアセテートコポリマー、スチレン−無水マレ
イン酸コポリマー、ポリメタクリレート、ポリアクリレート、及びそれらの混合
物からなる群より選択され、前記スチレン−無水マレイン酸コポリマー、ポリメ
タクリレート、及びポリアクリレートのぞれぞれの量平均分子量が、500,0
00原子質量単位以下である流れ改良剤;及び (e)0.01〜5.0質量%の摩擦調整剤; を含み、 該生成液組成物が、100℃における動粘度が少なくとも4.0mm2/s、−40 ℃におけるBrookfield粘度が約18,000センチポアズ以下、剪断速度1×1
06秒-1及び温度150℃における高温高剪断粘度が少なくとも1.5センチポ アズ、かつ、剪断速度2×102秒-1及び温度150℃で測定される高温低剪断 粘度と前記高温高剪断粘度との差が0.25センチポアズ以下であることを特徴
とする自動変速機液組成物。 - 【請求項10】前記流れ改良剤が、ポリメタクリレートである請求項9に記
載の組成物。 - 【請求項11】前記流れ改良剤が、スチレン−無水マレイン酸コポリマーで
ある請求項9に記載の組成物。 - 【請求項12】−40℃におけるBrookfield粘度が約15,000cP以下で
ある請求項10又は11に記載の組成物。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US888,845 | 1997-07-07 | ||
US08/888,845 US5866519A (en) | 1995-07-17 | 1997-07-07 | Automatic transmission fluids of improved viscometric properties |
PCT/US1998/013957 WO1999002628A1 (en) | 1997-07-07 | 1998-07-06 | Automatic transmission fluid compositions with improved viscometric properties |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001509534A true JP2001509534A (ja) | 2001-07-24 |
Family
ID=25394019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000502130A Pending JP2001509534A (ja) | 1997-07-07 | 1998-07-06 | 改良された粘度特性を有する自動変速機液組成物 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5866519A (ja) |
EP (1) | EP1040177A1 (ja) |
JP (1) | JP2001509534A (ja) |
KR (1) | KR20010021514A (ja) |
AU (1) | AU739957B2 (ja) |
CA (1) | CA2294938C (ja) |
WO (1) | WO1999002628A1 (ja) |
Cited By (4)
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JP2005061457A (ja) * | 2003-08-20 | 2005-03-10 | Nissan Motor Co Ltd | ころ軸受 |
JP2006502303A (ja) * | 2002-10-08 | 2006-01-19 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | 高粘度指数の基材油、基油および潤滑油組成物、ならびにそれらの製造および使用方法 |
JP2009096925A (ja) * | 2007-10-18 | 2009-05-07 | Japan Energy Corp | 自動変速機油及びその製造方法 |
WO2016152229A1 (ja) * | 2015-03-20 | 2016-09-29 | Jxエネルギー株式会社 | 変速機用潤滑油組成物 |
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US6133210A (en) * | 1998-06-30 | 2000-10-17 | The Lubrizol Corporation | Homogeneous additive concentrates for preparing lubricating oil compositions |
US6191078B1 (en) * | 1999-09-21 | 2001-02-20 | Exxonmobil Research And Engineering Company | Part-synthetic, aviation piston engine lubricant |
GB0011931D0 (en) * | 2000-05-17 | 2000-07-05 | Exxonmobil Res & Eng Co | Friction modifier additive combination |
JP4614049B2 (ja) * | 2004-03-31 | 2011-01-19 | 東燃ゼネラル石油株式会社 | エンジン油組成物 |
JP4677359B2 (ja) * | 2005-03-23 | 2011-04-27 | アフトン・ケミカル・コーポレーション | 潤滑組成物 |
US8034754B2 (en) * | 2005-03-31 | 2011-10-11 | The Lubrizol Corporation | Fluids for enhanced gear protection |
US7531486B2 (en) * | 2005-03-31 | 2009-05-12 | Exxonmobil Chemical Patents Inc. | Additive system for lubricant |
US8299002B2 (en) * | 2005-10-18 | 2012-10-30 | Afton Chemical Corporation | Additive composition |
FR2936812B1 (fr) * | 2008-10-03 | 2010-10-15 | Total France | Compositions lubrifiantes pour transmissions. |
CN111542712A (zh) | 2017-11-14 | 2020-08-14 | 本田技研工业株式会社 | 密封材料及具备该密封材料的减振装置 |
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JPH0737623B2 (ja) * | 1986-03-31 | 1995-04-26 | 出光興産株式会社 | 潤滑油組成物 |
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-
1997
- 1997-07-07 US US08/888,845 patent/US5866519A/en not_active Expired - Lifetime
-
1998
- 1998-07-06 CA CA002294938A patent/CA2294938C/en not_active Expired - Fee Related
- 1998-07-06 KR KR1020007000058A patent/KR20010021514A/ko not_active Application Discontinuation
- 1998-07-06 AU AU82895/98A patent/AU739957B2/en not_active Ceased
- 1998-07-06 EP EP98933178A patent/EP1040177A1/en not_active Withdrawn
- 1998-07-06 JP JP2000502130A patent/JP2001509534A/ja active Pending
- 1998-07-06 WO PCT/US1998/013957 patent/WO1999002628A1/en not_active Application Discontinuation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006502303A (ja) * | 2002-10-08 | 2006-01-19 | エクソンモービル リサーチ アンド エンジニアリング カンパニー | 高粘度指数の基材油、基油および潤滑油組成物、ならびにそれらの製造および使用方法 |
JP2005061457A (ja) * | 2003-08-20 | 2005-03-10 | Nissan Motor Co Ltd | ころ軸受 |
JP2009096925A (ja) * | 2007-10-18 | 2009-05-07 | Japan Energy Corp | 自動変速機油及びその製造方法 |
WO2016152229A1 (ja) * | 2015-03-20 | 2016-09-29 | Jxエネルギー株式会社 | 変速機用潤滑油組成物 |
JPWO2016152229A1 (ja) * | 2015-03-20 | 2018-01-11 | Jxtgエネルギー株式会社 | 変速機用潤滑油組成物 |
Also Published As
Publication number | Publication date |
---|---|
AU739957B2 (en) | 2001-10-25 |
AU8289598A (en) | 1999-02-08 |
US5866519A (en) | 1999-02-02 |
EP1040177A1 (en) | 2000-10-04 |
CA2294938A1 (en) | 1999-01-21 |
WO1999002628A1 (en) | 1999-01-21 |
CA2294938C (en) | 2008-03-18 |
KR20010021514A (ko) | 2001-03-15 |
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